FR1183642A - Device for adjusting the resonant frequency of an oscillating circuit - Google Patents

Device for adjusting the resonant frequency of an oscillating circuit

Info

Publication number
FR1183642A
FR1183642A FR1183642DA FR1183642A FR 1183642 A FR1183642 A FR 1183642A FR 1183642D A FR1183642D A FR 1183642DA FR 1183642 A FR1183642 A FR 1183642A
Authority
FR
France
Prior art keywords
adjusting
resonant frequency
oscillating circuit
oscillating
circuit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of FR1183642A publication Critical patent/FR1183642A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J3/00—Continuous tuning
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
    • H03B5/12—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device
    • H03B5/1203—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device the amplifier being a single transistor
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
    • H03B5/12—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device
    • H03B5/1231—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device the amplifier comprising one or more bipolar transistors
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/36—Angle modulation by means of light-sensitive element
FR1183642D 1956-10-02 1957-10-01 Device for adjusting the resonant frequency of an oscillating circuit Expired FR1183642A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL211091 1956-10-02
NL216901 1957-05-02

Publications (1)

Publication Number Publication Date
FR1183642A true FR1183642A (en) 1959-07-09

Family

ID=26641609

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1183642D Expired FR1183642A (en) 1956-10-02 1957-10-01 Device for adjusting the resonant frequency of an oscillating circuit

Country Status (6)

Country Link
US (1) US2951995A (en)
BE (1) BE561232A (en)
DE (1) DE1070694B (en)
FR (1) FR1183642A (en)
GB (1) GB879650A (en)
NL (4) NL111119C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2033216A1 (en) * 1968-12-27 1970-12-04 Longines Montres Comp D

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3141140A (en) * 1959-05-20 1964-07-14 Acoustica Associates Inc A. c. operated transistor oscillator or amplifier circuits
NL239492A (en) * 1959-05-23
US3168651A (en) * 1960-06-13 1965-02-02 Ericsson Telefon Ab L M Arrangement for frequency control
US3207989A (en) * 1961-01-24 1965-09-21 Texas Instruments Inc Automatic frequency control system
US3214661A (en) * 1961-10-10 1965-10-26 Westinghouse Canada Ltd Line tracers
US3319179A (en) * 1966-03-11 1967-05-09 Zenith Radio Corp Automatic frequency controlled signal generator
US3393379A (en) * 1966-11-30 1968-07-16 Rca Corp Frequency control circuit utilizing switching means
JPS53111264A (en) * 1977-03-10 1978-09-28 Sony Corp Oscillator

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2666902A (en) * 1950-06-30 1954-01-19 Rca Corp Frequency modulator transistor circuits
US2778956A (en) * 1952-10-31 1957-01-22 Bell Telephone Labor Inc Semiconductor signal translating devices
US2805397A (en) * 1952-10-31 1957-09-03 Bell Telephone Labor Inc Semiconductor signal translating devices
NL187545C (en) * 1953-08-10
FR1131428A (en) * 1953-12-04 1957-02-21 Philips Nv Mounting equivalent to a variable electric resistance
NL196121A (en) * 1954-03-31
US2764687A (en) * 1954-07-19 1956-09-25 Hoffman Electronics Corp Transistor automatic frequency control

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2033216A1 (en) * 1968-12-27 1970-12-04 Longines Montres Comp D

Also Published As

Publication number Publication date
US2951995A (en) 1960-09-06
NL111119C (en)
NL104634C (en)
NL211091A (en)
NL216901A (en)
DE1070694B (en)
GB879650A (en) 1961-10-11
BE561232A (en)

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